Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training,
learning paths, books, tutorials, and more.

12 Programming

Programming an early computer like the AN/FSQ-7 was quite different from today’s perspective as many of the modern programming idioms, such as using a stack for parameter passing to subroutines and storing return addresses etc. were not used back then. In addition to that, the two 16 bit arithmetic elements of the AN/FSQ-7, working in parallel, are still a rather unusual feature.

The following sections give an overview of the instruction format, instruction set, and typical programming idioms with regard to indexing and subroutine handling. The final AN/FSQ-7/8 computers featured 59 different instructions grouped into eight classes, while the XD-1 prototype implemented only 48 instructions. All following examples and tables are ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training,
learning paths, books, interactive tutorials, and more.